NAEP Analysis and Scaling - Range of Response Codes, Percent Agreement, and Cohen's Kappa or Intraclass Correlation for the Constructed-Response Items From Previous Years, Rescored in 2012, Age 9 Mathematics Long-Term Trend Assessment,

NAEP Analysis and Scaling → Initial Activities → Constructed-Response Interrater Reliability → Range of Response Codes, Percent Agreement, and Cohen's Kappa or Intraclass Correlation for the Constructed-Response Items From Previous Years, Rescored in 2012, Age 9 Mathematics Long-Term Trend Assessment, by Item and Block: 2012

NAEP Technical DocumentationScore range and percent agreement for the constructed-response items from the previous year assessed that were rescored in 2012, age 9 mathematics long-term trend assessment, by item and block: 2012
Block	Item	Range of response codes	Sample size	Percent exact agreement
NOTE: Special codes assigned to student responses including blank, off-task, and not-scorable were included in the calculation of the percent exact agreement measure. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Mathematics Long-Term Trend Assessment.
MB	N294201	1-2	800	100
	N294301	1-2	800	100
	N295301	1-2	800	99
	N295401	1-2	800	99
	N295701	1-2	800	98
MC	N322401	1-2	800	100
	N323101	1-2	800	99
	N323701	1-2	800	100
	N323901	1-2	800	100
	N324001	1-2	800	99
MD	N312901	1-2	800	99
	N313001	1-2	800	100
	N313101	1-2	800	99
	N313102	1-2	800	99
	N313103	1-2	800	99
	N313701	1-2	800	100
	N313702	1-2	800	99
	N313801	1-2	800	100
	N313901	1-2	800	100
ME	N287601	1-2	800	98
	N288101	1-2	800	100
	N288501	1-2	800	97
	N289201	1-2	800	99
MF	N289701	1-2	800	100
	N289901	1-2	800	100
	N290101	1-2	800	99
	N290701	1-2	800	99
	N291501	1-2	800	100

Score range and Cohen's Kappa or intraclass correlation for the constructed-response items from previous years that were rescored in 2012, age 9 mathematics long-term trend assessment, by item and block: 2012
Block	Item	Range of response codes	Sample size	Cohen’s Kappa	Intraclass correlation
† Not applicable. The intraclass correlation is not reported for dichotomously scored items; Cohen’s Kappa is not reported for polytomously scored items. NOTE: Cohen's Kappa is a measure of reliability that is used for items that are dichotomously scored. The intraclass correlation is used for items with more than two categories. The discrepancy in sample sizes compared to the first table is due to the fact that percent agreement is calculated from the entire sample size, while Cohen's Kappa and intraclass correlation statistics exclude those who omit the item. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Mathematics Long-Term Trend Assessment.
MB	N294201	1-2	800	0.96	†
	N294301	1-2	800	0.99	†
	N295301	1-2	800	0.99	†
	N295401	1-2	800	0.98	†
	N295701	1-2	800	0.97	†
MC	N322401	1-2	800	0.99	†
	N323101	1-2	800	0.99	†
	N323701	1-2	700	0.99	†
	N323901	1-2	800	1.00	†
	N324001	1-2	700	0.99	†
MD	N312901	1-2	800	0.97	†
	N313001	1-2	800	0.99	†
	N313101	1-2	800	0.98	†
	N313102	1-2	800	0.99	†
	N313103	1-2	800	0.99	†
	N313701	1-2	700	0.99	†
	N313702	1-2	700	0.99	†
	N313801	1-2	800	0.99	†
	N313901	1-2	800	0.99	†
ME	N287601	1-2	700	0.98	†
	N288101	1-2	800	0.99	†
	N288501	1-2	800	0.99	†
	N289201	1-2	800	0.98	†
MF	N289701	1-2	800	1.00	†
	N289901	1-2	800	0.99	†
	N290101	1-2	800	0.98	†
	N290701	1-2	800	0.98	†
	N291501	1-2	700	0.99	†

Last updated 13 November 2013 (JL)